Investigation of structure in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">Al</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>23</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>via resonant proton scattering of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">Mg</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>22</mml:mn></mml:mrow></mml:mmul

He, Jiajia; Kubono, S.; Teranishi, Takashi; Notani, M.; Baba, H.; Nishimura, S.; Moon, Janghyuk; Nishimura, M.; Iwasaki, H.; Yanagisawa, Y.; Hokoiwa, N.; Kibe, M.; Lee, J. H.; Kato, S.; Gono, Y.; Lee, C. S.

doi:10.1103/physrevc.76.055802

Cited by 41 publications

(49 citation statements)

References 38 publications

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“…This method has several advantages, namely, (a) using inverse kinematics, we can study reactions with short-lived RI which cannot be used as the target, (b) we can perform simultaneous measurements of cross section of various excitation energies without varying the incoming RI beam energy, and (c) we can perform measurements at 180 • in center-of-mass angle, where the Coulomb scattering is minimal. Many fruitful results have been obtained at CRIB with this method [6][7][8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Studies on Nuclear Astrophysics and Exotic Structure at the Low-Energy RI Beam Facility CRIB

Yamaguchi¹,

Kahl²,

Hayakawa³

et al. 2015

Proceedings of the Conference on Advances in Radioactive Isotope Science (ARIS2014)

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Studies on nuclear astrophysics, resonant structure, and nuclear reaction are going on at CRIB (CNS Radioactive Ion Beam separator), a low-energy RI beam separator operated by Center for Nuclear Study (CNS), the University of Tokyo. Two major methods used at CRIB to study nuclear reactions of astrophysical relevance are the resonant scattering, and direct measurements of (α,p) reactions using a thick-gas target. Several experiments for decay measurements and reaction mechanism are also performed using low-energy RI beams at CRIB. Some of the results from recent experiments at CRIB are discussed.

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Section: Introductionmentioning

confidence: 99%

Studies on Nuclear Astrophysics and Exotic Structure at the Low-Energy RI Beam Facility CRIB

Yamaguchi¹,

Kahl²,

Hayakawa³

et al. 2015

Proceedings of the Conference on Advances in Radioactive Isotope Science (ARIS2014)

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Section: Introductionmentioning

confidence: 99%

Studies on alpha-induced astrophysical reactions using the low-energy RI beam separator CRIB

Yamaguchi

Kahl

Nakao

et al. 2014

EPJ Web of Conferences

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Abstract. Several alpha-induced astrophysical reactions have been studied at CRIB (CNS Radioactive Ion Beam separator), which is a low-energy RI beam separator at Center for Nuclear Study (CNS) of the University of Tokyo. Two major methods to study them are the α resonant scattering, and direct measurements of (α,p) reactions using an active or inactive helium gas target. Among the recent studies at CRIB, the measurement of 7 Be+α resonant scattering is discussed.

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“…The thick target method [41][42][43][44][45], proven to be successful in our previous studies [46][47][48][49], was used in this experiment. In particular, we have 17 F rates within the framework of one-zone XRB postprocessing calculations.…”

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confidence: 99%

“…The excitation functions of 17 F+p elastic scattering have been reconstructed using the procedure described previously [31,45,47]. The excitation functions at two scattering angles are shown in Fig.…”

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confidence: 99%

Examination of the role of theO14(α,p)F17reac

Parikh

et al. 2014

Phys. Rev. C

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The 14 O(α,p) 17 F reaction is one of the key reactions involved in the breakout from the hot-CNO cycle to the rp-process in type-I x-ray bursts (XRBs). The resonant properties in the compound nucleus 18 Ne have been investigated through resonant elastic scattering of 17 F+p. The radioactive 17 F beam was separated by the Center for Nuclear Study radioactive ion beam separator (CRIB) and bombarded a thick H 2 gas target at 3.6 MeV/nucleon. The recoiling light particles were measured by three E-E silicon telescopes at laboratory angles of θ lab ≈3 • , 10 • , and 18 • . Five resonances at E x = 6.15, 6.28, 6.35, 6.85, and 7.05 MeV were observed in the excitation functions, and their spin-parities have been determined based on an R-matrix analysis. In particular, J π = 1 − was firmly assigned to the 6.15-MeV state which dominates the thermonuclear 14 O(α,p) 17 F rate below 2 GK. As well, a possible new excited state in 18 Ne was observed at E x = 6.85 ± 0.11 MeV with tentative J = 0 assignment. This state could be the analog state of the 6.880 MeV (0 − ) level in the mirror nucleus 18 O, or a bandhead state (0 + ) of the six-particle four-hole (6p-4h) band. A new thermonuclear 14 O(α,p) 17 F rate has been determined, and the astrophysical impact of multiple recent rates has been examined using an XRB model. Contrary to previous expectations, we find only a modest impact on predicted nuclear energy generation rates from using reaction rates differing by up to several orders of magnitude.

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Investigation of structure inAl23via resonant proton scattering ofMg22

Cited by 41 publications

References 38 publications

Studies on Nuclear Astrophysics and Exotic Structure at the Low-Energy RI Beam Facility CRIB

Studies on Nuclear Astrophysics and Exotic Structure at the Low-Energy RI Beam Facility CRIB

Studies on alpha-induced astrophysical reactions using the low-energy RI beam separator CRIB

Examination of the role of theO14(α,p)F17reac

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